An interventional study of Liberal Fluid Therapy and Restricted Fluid Therapy in Prostate Cancer, Surgery and Fluid Overload, sponsored by Nazmy Edward Seif. Recruiting at 1 site in Egypt. Open to male participants aged 40 Years to 80 Years. Per ClinicalTrials.gov, last updated 2026-06-08.
Sponsored by Nazmy Edward Seif · Not applicable, Interventional, and Supportive care
Fluid therapy during surgery is an important factor that is related to long term mortality and morbidity and it's directly related to tissue perfusion as well. The main target in any surgery is what is the optimum fluid therapy to maintain the tissue perfusion and the precise balance between hazardous effects of hypervolemia that may cause delayed wound healing due to surgical anastomosis disruption or being hypovolemic that may cause tissue ischemia as acute kidney injury.
Fluid management guidance changed from static methods like central venous pressure into dynamic methods like pulse pressure variation (PPV) and stroke volume variation (SVV), which are now the most famous dynamic measures.
Electrical cardiometry is a non-invasive cardiac output monitor which uses electrical cardiometry, now a commonly used device, to measure SVV which can be used to guide fluid therapy during surgeries.
Now robotic assisted surgery is a common method in preforming many surgeries especially urological, since it's associated with numerous desirable outcomes including shorter post-operative stay and faster return to preoperative function.
With considerations related to severe Trendelenburg position and increased intra-abdominal pressure due to pneumo-peritoneum, robotic assisted surgeries are associated with many challenges in anesthesia especially the fluid therapy.
Fluid therapy in robotic surgeries is an area with growing research focus that need further exploration while there are established guidelines for fluid management in traditional surgeries, the optimal protocols for robotic surgeries are less well defined, needing more research.
We aim at this study to investigate the impact of liberal versus restricted fluid intake on the tissue perfusion reflected by serum lactate \& creatinine clearance, while guiding therapy through electrical cardiometry, to reach optimum fluid protocol in prostatic robotic surgeries.
7,046 studies on the registry are indexed under Prostatic Neoplasms; 1,580 are open to participants now.
This study's planned enrollment of 90 is above the median of 60 across 5,348 interventional studies indexed under Prostatic Neoplasms.
Browse Prostatic Neoplasms studies →Nazmy Edward Seif is the lead sponsor of 14 studies on the registry; 3 are open to participants now.
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Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
ASA physical status
The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
GFR and eGFR (kidney filtering)
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
NYHA class (heart failure)
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Liberal Fluid Therapy Group
Procedure: Liberal Fluid Therapy
Restricted Fluid Therapy Group
Procedure: Restricted Fluid Therapy
Patients will receive 6 ml/kg/hour of lactated ringer for maintenance in addition to fasting hours compensation (2 ml/kg for each fasting hour, given as 50% in the first hour of surgery, then 25% during the second \& third hours). An additional bolus of 200 ml Lactated Ringer will be given if MAP is below 65 mmHg. In case of persistent hypotension despite proper fluid rescuistation, 10 mg of Ephedrine will be administered; if no response is achieved, norepinerhine infusion will start at initial dose 0.01mcg/kg/min if MAP is below 65 mmHg.
Patients will receive 2 ml/kg as fluid bolus then 2 ml/kg/hour for maintenance, aiming at a target SVV less than 13 %. Patients with SVV ≥ 13% will be considered fluid responder and will receive a fluid bolus of 200 ml Ringer Lactated Ringer over 10 minutes.The fluid bolus will be repeated until the SVV is less than 13%. In case of persistent hypotension (MAP less than 65mmHg), 10 mg of Ephedrine will be administered; if no response is achieved, norepinerhine infusion will be started at intial dose 0.01mcg/kg/min if MAP is below 65 mmHg.
Serum Lactate level difference
Serum Lactate level difference between pre-operative (baseline) value and post-operative (recovery) value in mmol/L
Time frame: 24 hours
Started Jun 2026 (actual). Primary completion is estimated for Dec 2026, 6 months after the start.
Of 1,098 non-industry interventional studies with no phase under Prostatic Neoplasms, half reached primary completion within 43 months of starting (the median), counting those still running; a quarter within 22 and three quarters within 86. This study's planned 6 months is below that.
Counting every sponsor, half of 1,155 studies reached it within 43 months; a quarter within 22 and three quarters within 84.
How these figures are worked out, and which studies are left out of them.
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Nazmy Edward Seif